"Doesn't the act of noticing matter as much as what's noticed?" So asks the narrator of Harry Mathews' masterpiece of minutia, The Journalist.

On the mend from a nervous breakdown (though it's mentioned only in passing — "the steering wheel came off in my hands," he says), he's been encouraged by his doctor to keep a journal. A seemingly benign idea, and he throws himself into the task with gusto — far too much gusto, it turns out, as the journal soon eclipses his entire life.

I've been reading Harry Mathews for years now, but of all his novels, I tackled The Journalist last. It's his least discussed work, and in my experience there's usually a reason for that. Mathews himself, in an interview, called it a "terrible flop", and complained that "nobody got it." So I started the book expecting something sub-par, thinking that even lesser Mathews would still offer a worthwhile and instructive read. And so I was surprised to find that not only was The Journalist good, but that it was every bit as great as Mathews' more celebrated novels.

The story begins innocently enough, and reads more or less as one might expect a journal to. It's divided by days, or times of day and the narrator strives to make the journal "as complete as possible."

To accomplish this he devises a series of increasingly complex categories and divisions within which to frame the events that make up his life. Category A relates to the verifiable, while category B relates to the subjective. When these begin bleeding into each other, he attempts to clarify things by adding "a further division into what concerns others and what concerns only myself." The result is categories A1, A2, B1, and B2. But this system also proves incomplete, and the narrator modifies his categories further still: within each existing section there will now be two more sections, one allotted to happenings involving people, and another involving "things" — an overheated frying pan that recently burned his hand, for example.

Does this sound complicated? It is. And it only gets more so, with subdivisions piling up one on top of the other, well beyond reason. As unruly as these categories become, though, they never flagged my interest, and I consider myself a flighty, easily distractable reader.

On the contrary, the narrator's charm and humor render the divisions, which appear in the margins beside the text, infectious fun to decode. And the conceit never overshadows the narrative itself, which is something of a genius-level paranoiac soap opera.

Inevitably, the journal takes precedence over all else. The narrator's office job is imperiled, as are his home life and his sleep, which he all but forgoes. This takes its toll on our hero, and his already odd interior life extends to the exterior: he TP's a tree out front of his place of work, claiming to have always pitied it, adding "and anyone who laid eyes on the gray dusty untended narrow sunless pit it has to live in would feel the same." Later we find him sneaking around his home in the nude, clutching a recorder, hoping to prove his wife's suspected infidelities; later still, he's wandering aimlessly on the outskirts of town in the middle of the night, doing battle with a hedge, and losing.

He is open to the idea that his behavior is not normal: "Nothing guarantees that phenomena are real because perceived. In other words, I may be nuts," he says.

True enough. In compartmentalizing his existence down to the finest detail, he finds the fabric of his life stretched dangerously thin.

The Journalist is a compendium of creature comforts, and a strangely touching study of obsession. Details, the narrator says, are the texture of life. This a richly textured novel — humane, wise, and immensely enjoyable.

You Must Read This is produced and edited by Ellen Silva with production assistance from Rose Friedman and Andrew Otis.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

AUDIE CORNISH, HOST:

You're listening to ALL THINGS CONSIDERED from NPR News.

As we get older, many people take their surroundings for granted; same house, same office, same street between them. Sometimes they stop looking around altogether and forget what its like to discover something new.

Well, author Patrick DeWitt recommends a book that is all about the little details of life. It's for our series You Must Read This. And it begins with the question: Doesn't the act of noticing matter as much as what's noticed?

PATRICK DEWITT, BYLINE: So asks the narrator of Harry Mathews' masterpiece of minutia, "The Journalist." On the mend from a nervous breakdown - though it's mentioned only in passing - the steering wheel came off in my hands, he says. He's been encouraged by his doctor to keep a journal. A seemingly benign idea, and he throws himself into the task with gusto - far too much gusto, it turns out, as the journal soon eclipses his entire life.

I've been reading Harry Mathews for years now, but of all his novels, I tackled "The Journalist" last. It's his least discussed work, and in my experience, there's usually a reason for that. Mathews himself, in a recent interview, called it a terrible flop and said that nobody got it. And so I was pleasantly surprised to find "The Journalist" every bit as good as Mathews' more celebrated novels.

The story begins innocently enough and reads more or less as one might expect a journal to. It's divided by days or times of day, and the narrator strives to make the journal as complete as possible. To accomplish this, he devises a series of increasingly complex categories and divisions within which to frame the events that make up his life. Category A relates to the verifiable, while category B relates to the subjective. When these begin bleeding into each other, he attempts to clarify things by adding a further division into what concerns others and what concerns only himself.

The result is categories A1, A2, B1 and B2. Does this sound complicated? It is. And it only gets more so, with subdivisions piling up one on top of the other, well beyond reason. As unruly as these categories become, though, they never flagged my interest, and I consider myself a flighty, easily distractible reader. On the contrary, the narrator's charm and humor actually render the divisions infectious fun to decode. Inevitably, the journal takes precedence over everything else.

The narrator's office job is imperiled, as are his home life and his sleep, which he all but forgoes. This takes its toll on our hero, and his already odd interior life extends to the exterior. Later, we find him sneaking around his home in the nude, clutching a recorder, hoping to find evidence of his wife's suspected infidelities. Later still, he's wandering aimlessly on the outskirts of town in the middle of the night, doing battle with a hedge and losing.

He is open to the idea that his behavior is not normal. Nothing guarantees that phenomena are real because perceived, he says. In other words, I may be nuts. True enough.

"The Journalist" is a compendium of creature comforts and a strangely touching study of obsession. Details, the narrator says, are the texture of life. This is a richly textured novel: humane, wise and immensely enjoyable.

CORNISH: Patrick deWitt is the author of the book "The Sisters Brothers." Transcript provided by NPR, Copyright NPR.